Time for an update. Got the pistons back from coating last week, and now finally got the top-end buttoned up.If I have to do the damned cam timing one more time I'm gonna scream!This engine is basically a good one, all the fundamentals are tough and capable of making plenty of power. But the way the top-end goes together is just nuts. One suspects the influence of recreational drugs!After much faffing about with cams that were binding in their end-thrust washers and trying to prevent oil leaks (which I suspect may be a losing battle) its together.BTW; WW, you were right to caution about patchy annealing of the head gaskets. Couldn't get the rear one to compress fully. Had to take it apart and anneal it again. OK now.Intake & wiring next.

Of course, one of the neat things about race bikes is the simplicity of wiring them, right? No annoying lights, turn signals etc. Yeah, right! 2 weeks in, I'm about done My own fault for getting all fancy with fuel-injection.

I've had it cranking over so far but couldn't get oil pressure until I overfilled the tank. Dry old pump wouldn't suck enough! I dont have a gauge, but the way the starter slowed when the oil light went out indicates theres plenty pressure.

Heres the completed loom: After reading of Oz's VR signal woes, I went overboard screening not only the VR sensor wires, but also the coil & injector circuits. Shredded a couple of old printer & antenna leads to get the braided stuff.

Here it is installed: The 3 relays are: main system, fuel pump & starter.The loose coiled wire is the ECU bootlogger connection. Grounding this clears the ECU code. I wont be doing that!

A gauge with a lambda wideband sensor is how I check my fuel/air mixture at Bonneville. The setup quit working a couple of years ago. I was running 110 octane leaded gas and I forgot to remove the sensor. The lead killed it, I think. The microsquirt depends on wideband sensors to get input. Does this limit you to running unleaded, only?

everyone,s in a spaghetti western!-it,s just before 10.30 at night here , i been spaghetti,ng all day too.all new to me,digital signals...look forward to hearing this lusty vee twin bellow-see you saturday briz.p.j.

Hope you don't mind me placing this in your build because I could not remember which bike build by beerbellykelly, SUMO, Briz, Desperate may have had a start/run problem with the new wiring and your photo shows the shielded wire. I have been thrilled at the work by all of you and looking forward to tales of your runs.

I was reading the latest version of "Data Acquisition" and a point jumped out at me that I thought I should share. On a shielded cable you only ground one end of the shield and that should be the one nearest the sensor. Otherwise ground loops and noise cause all sorts of problems. As can using two seperated (independant) batteries, having low voltage, not enough grounds. Hope this is useful to someone. Cheers to all.

Thanks GeoWe've been having a hell of a time here trying to get this thing going. A solid month since the first attempt to start it up, and it finally started yesterday.Not running well; the ignition is all over the place. Very rich, which would be easily dealt with but without a consistent ignition, its hopeless.Young David, who is much smarter than me with EFI stuff has been very helpful here with the laptop, but he now agrees that a stand-alone ignition system would exorcise a lot of demons.So I've set about altering the timing cover to take an HD pickup plate, and turned a special rotor up. Decided to shell out the dough for a TwinTec ignition box. And if that isn't enough, its carburetor time......